From b3770b3252589240e50f560197a19531979abba2 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Wed, 7 Nov 2012 17:00:05 +0000 Subject: [PATCH] arm64: smp: add missing completion for secondary boot Commit 149c24151e85 ("ARM: SMP: use a timing out completion for cpu hotplug") modified arm's CPU up path to use completions. It seems that we only got half of this patch for arm64, so add the missing call to complete. Reported-by: Jon Brawn Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas --- arch/arm64/kernel/smp.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index 226b6bf6e9c..538300f2273 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -211,8 +211,7 @@ asmlinkage void __cpuinit secondary_start_kernel(void) * before we continue. */ set_cpu_online(cpu, true); - while (!cpu_active(cpu)) - cpu_relax(); + complete(&cpu_running); /* * OK, it's off to the idle thread for us